PTC THERAPEUTICS INC

Ticker: PTCT CUSIP: 69366J200 Class: Common Stock

Aperio Group, LLC's Holding History (CIK: 0001364615)

Note: Option positions (PUT/CALL) are excluded.

Q4 2020

Shares 15,046 Value ($000) $918 Avg Close $58.94 Range $46.86 - $68.81

Q3 2020

Shares 12,843 Value ($000) $600 Avg Close $49.23 Range $44.19 - $58.13

Q2 2020

Shares 9,988 Value ($000) $507 Avg Close $49.14 Range $40.03 - $55.00

Q1 2020

Shares 6,519 Value ($000) $291 Avg Close $50.35 Range $30.79 - $59.89

Q4 2019

Shares 4,982 Value ($000) $239 Avg Close $42.49 Range $31.49 - $50.96

Q2 2019

Shares 3,738 Value ($000) $168 Avg Close $39.49 Range $34.51 - $45.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	15,046	$918	$58.94	$46.86 - $68.81
Q3 2020	12,843	$600	$49.23	$44.19 - $58.13
Q2 2020	9,988	$507	$49.14	$40.03 - $55.00
Q1 2020	6,519	$291	$50.35	$30.79 - $59.89
Q4 2019	4,982	$239	$42.49	$31.49 - $50.96
Q2 2019	3,738	$168	$39.49	$34.51 - $45.00